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Related Experiment Video

Updated: Jun 23, 2026

Assessment of Plasma Coagulation on Liver Tissue in a Large Animal Model In Vivo

Assessment of Plasma Coagulation on Liver Tissue in a Large Animal Model In Vivo

Published on: August 4, 2018

Prophylactic argon plasma coagulation ablation does not decrease delayed postpolypectomy bleeding.

Chang Kyun Lee¹, Suck-Ho Lee, Ji-Young Park

¹Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, Republic of Korea.

Gastrointestinal Endoscopy

|April 24, 2009

Summary

This summary is machine-generated.

Prophylactic argon plasma coagulation (APC) did not significantly reduce delayed postpolypectomy bleeding (PPB) after colonoscopic polypectomy. This study found no added benefit of APC in preventing this common complication.

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Assessment of Plasma Coagulation on Liver Tissue in a Large Animal Model In Vivo

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Cooling or Warming the Esophagus to Reduce Esophageal Injury During Left Atrial Ablation in the Treatment of Atrial Fibrillation

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Published on: March 15, 2020

Area of Science:

Gastroenterology
Endoscopic Procedures
Surgical Complications

Background:

Postpolypectomy bleeding (PPB) is a common complication following colonoscopic polypectomy.
Delayed PPB, occurring days after the procedure, lacks established preventive guidelines.
Submucosal vessels within the artificial ulcer may contribute to delayed bleeding.

Purpose of the Study:

To evaluate the efficacy of prophylactic argon plasma coagulation (APC) in preventing delayed PPB.
To assess if coagulating nonbleeding visible vessels reduces the incidence of delayed bleeding after polypectomy.

Main Methods:

A prospective, randomized, controlled study was conducted at a tertiary referral center.
987 polyps were resected from 600 patients undergoing colonoscopic polypectomy.
The intervention group received APC for nonbleeding visible vessels; the control group did not.

Main Results:

Delayed PPB occurred in 3.3% of all patients (2.5% APC group vs. 4.3% control group).
No statistically significant difference in delayed PPB rates was observed between the APC and control groups.
No significant APC-related complications were reported.

Conclusions:

Prophylactic APC ablation of nonbleeding visible vessels does not offer an advantage in preventing delayed PPB.
Current findings suggest that APC may not be beneficial for preventing delayed bleeding after colonoscopic polypectomy.